MAAS CLI 3.2 problem. HELP!

Hello!

My OS Ubuntu 20.04.

I installed maas 3.2 from snap following the instructions https://maas.io/docs/how-to-use-the-maas-cli.
I created a user and logged in with apikey.
but when outputting maas $profile --help, not all functions are displayed for me.

root@maas:~# sudo maas admin
usage: maas admin [-h] COMMAND ...

Issue commands to the MAAS region controller at http://185.92.73.160:5240/MAAS/api/2.0/.

optional arguments:
  -h, --help show this help message and exit

drill down:
  COMMAND
    devices Manage the collection of all the devices in the MAAS.
    files Manage the collection of all the files in this MAAS.
    machines Manage the collection of all the machines in the MAAS.
    nodes Manage the collection of all the nodes in the MAAS.
    rack-controllers Manage the collection of all rack controllers in MAAS.
    region-controllers
                      Manage the collection of all region controllers in MAAS.
    version Information about this MAAS instance.

This is a profile. Any commands you issue on this profile will
operate on the MAAS region server.

The command information you see here comes from the region server's
API; it may differ for different profiles. If you believe the API may
have changed, use the command's 'refresh' sub-command to fetch the
latest version of this help information from the server.

too few arguments

In addition, when I want to view from the available list, I get an error:

Unrecognized signature: method=GET op=None
root@maas:~# maas admin rack-controllers read
Unrecognised signature: method=GET op=None